Particle Physics Questions : Multiple Choice

Q21.The Σ⁰ baryon, composed of the quark combination uds, is produced through the strong interaction between a π⁺ meson and a neutron.

What is the quark composition of X?

Q22. An iodine nucleus decays into a nucleus of Xe−131, a beta-minus particle and particle Y.

Which of the following is a property of particle Y?

A	It has a lepton number of +1
B	It is an antiparticle
C	It is negatively charged
D	It experiences the strong interaction

Q23. Which row shows the correct interactions experienced by a hadron or a lepton?

Q24. What interactions are involved in the production of a strange particle and its decay into non-strange particles?